:root{--sq-light:#f0d9b5;--sq-dark:#b58863;--sq-light-selected:#f7ec7d;--sq-dark-selected:#dac547;--sq-highlight:#ffff3280;--sq-last-move:#9bc70069;--sq-hint:#0096ff80;--sq-danger:#ff000059;--sq-check:radial-gradient(circle, #f009 0%, transparent 68%);--bg-primary:#161512;--bg-secondary:#1d1b18;--bg-card:#262320;--bg-hover:#332f2b;--bg-input:#1a1816;--text-primary:#e8e6e3;--text-secondary:#a09d98;--text-muted:#6b6862;--accent:#81b64c;--accent-hover:#6ea03e;--accent-blue:#5b9bd5;--danger:#e74c3c;--warning:#f39c12;--border:#3a3632;--shadow:#0006;--eval-white:#f0f0f0;--eval-black:#2a2a2a;--move-brilliant:#17c964;--move-great:#5b9bd5;--move-good:#81b64c;--move-inaccuracy:#f39c12;--move-mistake:#e67e22;--move-blunder:#e74c3c;--board-size:min(65vh, 560px);--sidebar-width:280px;--header-height:56px;--border-radius:8px;--transition:.2s ease}*{box-sizing:border-box;margin:0;padding:0}html{height:100%;overflow:hidden}body{background:var(--bg-primary);color:var(--text-primary);width:100dvw;height:100dvh;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow:hidden}.screen{width:100dvw;height:100dvh;display:none}.screen.active{display:flex}.menu-container{flex-direction:column;justify-content:center;align-items:center;gap:32px;width:100%;padding:40px;display:flex}.logo{text-align:center}.logo-piece{filter:drop-shadow(0 4px 12px #00000080);margin-bottom:8px;font-size:72px;display:block}.logo h1{background:linear-gradient(135deg, var(--accent), #5b9bd5);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:42px;font-weight:800}.tagline{color:var(--text-secondary);margin-top:4px;font-size:16px}.menu-actions{flex-direction:column;gap:12px;width:320px;display:flex}.menu-stats{color:var(--text-muted);text-align:center;font-size:13px}.btn{border-radius:var(--border-radius);cursor:pointer;transition:all var(--transition);border:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:15px;font-weight:600;display:flex}.btn:hover{transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-large{padding:14px 24px;font-size:17px}.btn-small{padding:6px 12px;font-size:13px}.btn-icon{font-size:18px}.setup-container{flex-direction:column;align-items:center;gap:24px;width:100%;max-width:640px;height:100dvh;margin:0 auto;padding:40px 24px;display:flex;overflow-y:auto}.setup-container h2{font-size:28px}.setup-options{flex-direction:column;gap:20px;width:100%;display:flex}.setup-group label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;font-size:13px;font-weight:600;display:block}.setup-actions{justify-content:space-between;gap:12px;width:100%;margin-top:8px;display:flex}.difficulty-selector{gap:8px;display:flex}.diff-btn{background:var(--bg-card);border:2px solid var(--border);border-radius:var(--border-radius);cursor:pointer;text-align:center;transition:all var(--transition);color:var(--text-primary);flex:1;padding:12px 8px}.diff-btn:hover{border-color:var(--text-muted);background:var(--bg-hover)}.diff-btn.active{border-color:var(--accent);background:#81b64c1a}.diff-stars{color:var(--warning);margin-bottom:4px;font-size:18px;display:block}.diff-name{font-size:14px;font-weight:700;display:block}.diff-desc{color:var(--text-muted);margin-top:2px;font-size:11px;display:block}.color-selector{gap:8px;display:flex}.color-btn{background:var(--bg-card);border:2px solid var(--border);border-radius:var(--border-radius);cursor:pointer;text-align:center;color:var(--text-primary);transition:all var(--transition);flex:1;padding:14px;font-size:15px;font-weight:600}.color-btn:hover{border-color:var(--text-muted)}.color-btn.active{border-color:var(--accent);background:#81b64c1a}.piece-display{font-size:22px}.mode-selector{gap:8px;display:flex}.mode-btn{background:var(--bg-card);border:2px solid var(--border);border-radius:var(--border-radius);cursor:pointer;text-align:center;transition:all var(--transition);color:var(--text-primary);flex:1;padding:14px 10px}.mode-btn:hover{border-color:var(--text-muted)}.mode-btn.active{border-color:var(--accent);background:#81b64c1a}.mode-icon{margin-bottom:4px;font-size:22px;display:block}.mode-title{font-size:14px;font-weight:700;display:block}.mode-desc{color:var(--text-muted);margin-top:2px;font-size:11px;display:block}.opening-list{border:1px solid var(--border);border-radius:var(--border-radius);background:var(--bg-card);max-height:200px;overflow-y:auto}.opening-list-item{cursor:pointer;border-bottom:1px solid var(--border);align-items:center;gap:8px;padding:8px 12px;font-size:13px;display:flex}.opening-list-item:last-child{border-bottom:none}.opening-list-item:hover{background:var(--bg-hover)}.opening-list-item.selected{background:#81b64c26}.opening-list-item .eco-tag{background:var(--bg-hover);color:var(--accent);text-align:center;border-radius:4px;min-width:30px;padding:2px 6px;font-size:11px;font-weight:700}.game-layout{width:100%;height:100%;display:flex}.game-sidebar-left{width:var(--sidebar-width);background:var(--bg-secondary);flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:16px;display:flex}.game-center{flex-direction:column;flex:1;justify-content:center;align-items:center;padding:16px;display:flex}.game-sidebar-right{width:var(--sidebar-width);background:var(--bg-secondary);border-left:1px solid var(--border);flex-direction:column;display:flex}.player-card{background:var(--bg-card);border-radius:var(--border-radius);align-items:center;gap:10px;width:100%;padding:10px 14px;display:flex}.player-card.active-turn{box-shadow:0 0 0 2px var(--accent)}.player-avatar{font-size:28px}.player-info{flex:1}.player-name{font-size:14px;font-weight:700;display:block}.player-rating{color:var(--text-muted);font-size:12px;display:block}.player-timer{color:var(--text-secondary);font-family:monospace;font-size:18px;font-weight:700}.captured-pieces{flex-wrap:wrap;align-items:center;gap:2px;width:100%;min-height:24px;padding:0 4px;display:flex}.captured-piece{width:18px;height:18px;display:inline-flex}.captured-piece img{object-fit:contain;width:100%;height:100%}.eval-bar-container{align-items:center;gap:6px;width:100%;padding:4px;display:flex}.eval-bar{background:var(--eval-black);border-radius:6px;flex:1;height:12px;position:relative;overflow:hidden}.eval-fill{background:var(--eval-white);border-radius:6px;width:50%;height:100%;transition:width .5s}.eval-text{color:var(--text-secondary);text-align:center;min-width:32px;font-size:11px;font-weight:700}.board-frame{box-shadow:0 4px 20px var(--shadow);border-radius:4px;position:relative;overflow:hidden}.board-frame-small{width:min(50vh,420px)}.board-container{width:var(--board-size);aspect-ratio:1;border:2px solid var(--border);cursor:pointer;-webkit-user-select:none;user-select:none;touch-action:manipulation;-webkit-tap-highlight-color:transparent;grid-template-rows:repeat(8,1fr);grid-template-columns:repeat(8,1fr);display:grid}.square{aspect-ratio:1;justify-content:center;align-items:center;width:100%;transition:background-color .1s;display:flex;position:relative;overflow:hidden}.square.light{background:var(--sq-light)}.square.dark{background:var(--sq-dark)}.square.selected.light{background:var(--sq-light-selected)}.square.selected.dark{background:var(--sq-dark-selected)}.square.last-move{background:var(--sq-last-move)}.square.hint{background:var(--sq-hint)}.square.danger{background:var(--sq-danger)}.square.check:after{content:"";background:var(--sq-check);pointer-events:none;border-radius:50%;position:absolute;inset:0}.square .move-dot{pointer-events:none;background:#00000040;border-radius:50%;width:28%;height:28%}.square .capture-ring{pointer-events:none;border:6px solid #00000040;border-radius:50%;position:absolute;inset:0}.square .piece{cursor:grab;z-index:2;justify-content:center;align-items:center;width:85%;height:85%;line-height:1;transition:transform .1s;display:flex}.square .piece img{object-fit:contain;pointer-events:none;width:100%;height:100%}.square .piece:hover{transform:scale(1.08)}.square.dragging .piece{cursor:grabbing;opacity:.5}.board-coords{width:var(--board-size);justify-content:space-around;padding:0;display:flex}.board-coords span{width:calc(var(--board-size) / 8);text-align:center;color:var(--text-muted);font-size:11px;font-weight:600;line-height:20px}.board-coords-left,.board-coords-right{height:var(--board-size);flex-direction:column;justify-content:space-around;display:flex;position:absolute;top:0}.board-coords-left span,.board-coords-right span{height:calc(var(--board-size) / 8);color:var(--text-muted);align-items:center;padding:0 4px;font-size:11px;font-weight:600;display:flex}.game-status{background:var(--bg-card);border-radius:var(--border-radius);color:var(--text-secondary);text-align:center;margin-top:12px;padding:8px 20px;font-size:14px;font-weight:600}.game-status.check{color:var(--danger)}.game-status.gameover{color:var(--warning);font-size:16px}.move-list-header{border-bottom:1px solid var(--border);justify-content:space-between;padding:12px 16px;font-size:14px;font-weight:700;display:flex}.move-count{color:var(--text-muted);font-size:12px;font-weight:400}.move-list{flex:1;padding:8px;font-family:SF Mono,Fira Code,monospace;font-size:13px;overflow-y:auto}.move-row{border-radius:4px;grid-template-columns:32px 1fr 1fr;gap:2px;padding:2px 4px;display:grid}.move-row:hover{background:var(--bg-hover)}.move-num{color:var(--text-muted);text-align:right;padding-right:6px}.move-cell{cursor:pointer;transition:background var(--transition);border-radius:3px;padding:2px 6px}.move-cell:hover{background:var(--bg-hover)}.move-cell.active{background:#81b64c33}.move-cell .classification-dot{vertical-align:middle;border-radius:50%;width:6px;height:6px;margin-right:4px;display:inline-block}.game-controls{border-top:1px solid var(--border);flex-wrap:wrap;gap:6px;padding:12px;display:flex}.opening-info{border-top:1px solid var(--border);padding:12px}.opening-badge{background:var(--accent);color:#fff;border-radius:4px;margin-bottom:6px;padding:2px 8px;font-size:11px;font-weight:700;display:inline-block}.opening-name{margin-bottom:4px;font-size:14px;font-weight:600}.opening-next-moves{color:var(--text-muted);font-family:monospace;font-size:12px;line-height:1.6}.opening-next-moves .next-move{color:var(--accent);cursor:pointer;font-weight:600}.opening-next-moves .next-move:hover{text-decoration:underline}.game-actions{border-top:1px solid var(--border);flex-direction:column;gap:8px;padding:12px;display:flex}.analysis-layout{flex-direction:column;width:100%;height:100%;display:flex}.analysis-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:16px 24px;display:flex}.analysis-header h2{font-size:22px}.analysis-body{flex:1;gap:16px;padding:16px;display:flex;overflow:hidden}.analysis-board-area{flex-direction:column;align-items:center;gap:12px;display:flex}.analysis-controls{gap:6px;display:flex}.analysis-details{flex-direction:column;flex:1;gap:12px;display:flex;overflow:hidden}.analysis-stats{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px;display:grid}.stat-card{background:var(--bg-card);border-radius:var(--border-radius);text-align:center;padding:12px}.stat-value{font-size:24px;font-weight:800}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;font-size:11px}.stat-card.brilliant .stat-value{color:var(--move-brilliant)}.stat-card.great .stat-value{color:var(--move-great)}.stat-card.good .stat-value{color:var(--move-good)}.stat-card.inaccuracy .stat-value{color:var(--move-inaccuracy)}.stat-card.mistake .stat-value{color:var(--move-mistake)}.stat-card.blunder .stat-value{color:var(--move-blunder)}.analysis-graph{background:var(--bg-card);border-radius:var(--border-radius);padding:12px}#eval-chart{width:100%;height:150px}.analysis-moves{flex-direction:column;flex:1;gap:2px;display:flex;overflow-y:auto}.analysis-move-row{cursor:pointer;border-radius:4px;grid-template-columns:32px 1fr 1fr 100px;gap:4px;padding:4px 8px;font-family:monospace;font-size:13px;display:grid}.analysis-move-row:hover{background:var(--bg-hover)}.analysis-move-row .move-classification{text-align:right;font-size:11px;font-weight:700}.analysis-move-row .eval-change{color:var(--text-muted);font-size:11px}.openings-layout{flex-direction:column;width:100%;height:100%;display:flex}.openings-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:16px 24px;display:flex}.openings-body{flex:1;display:flex;overflow:hidden}.openings-sidebar{border-right:1px solid var(--border);flex-direction:column;width:340px;display:flex;overflow:hidden}.category-tabs{border-bottom:1px solid var(--border);gap:4px;padding:8px;display:flex;overflow-x:auto}.cat-tab{cursor:pointer;white-space:nowrap;background:var(--bg-card);border:1px solid var(--border);color:var(--text-secondary);transition:all var(--transition);border-radius:12px;padding:4px 10px;font-size:12px;font-weight:600}.cat-tab:hover{background:var(--bg-hover)}.cat-tab.active{background:var(--accent);color:#fff;border-color:var(--accent)}.openings-list{flex:1;padding:4px;overflow-y:auto}.opening-item{cursor:pointer;transition:background var(--transition);border-radius:6px;align-items:center;gap:8px;padding:8px 12px;font-size:13px;display:flex}.opening-item:hover{background:var(--bg-hover)}.opening-item.active{background:#81b64c26}.opening-item .eco-tag{background:var(--bg-hover);color:var(--accent);text-align:center;border-radius:4px;min-width:30px;padding:2px 6px;font-size:11px;font-weight:700}.openings-detail{flex-direction:column;flex:1;align-items:center;gap:16px;padding:24px;display:flex;overflow-y:auto}.opening-detail-header{text-align:center}.eco-badge{background:var(--accent);color:#fff;border-radius:4px;margin-bottom:8px;padding:3px 10px;font-size:13px;font-weight:700;display:inline-block}.opening-detail-header h3{margin-bottom:4px;font-size:20px}.opening-detail-header p{color:var(--text-secondary);font-size:14px}.opening-moves-display{background:var(--bg-card);border-radius:var(--border-radius);width:100%;max-width:600px;padding:16px;font-family:monospace;font-size:15px;line-height:1.8}.puzzles-container{flex-direction:column;align-items:center;width:100%;height:100%;display:flex}.puzzles-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;width:100%;padding:16px 24px;display:flex}.puzzle-board-area{flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;display:flex}.puzzle-info{text-align:center}.puzzle-prompt{margin-bottom:12px;font-size:18px;font-weight:700}.puzzle-controls{justify-content:center;gap:8px;margin-bottom:8px;display:flex}.puzzle-score{color:var(--text-muted);font-size:14px}.settings-container{flex-direction:column;align-items:center;width:100%;height:100%;display:flex}.settings-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;width:100%;max-width:600px;padding:16px 24px;display:flex}.settings-body{flex-direction:column;gap:20px;width:100%;max-width:600px;padding:24px;display:flex;overflow-y:auto}.setting-group{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:12px 0;display:flex}.setting-group label:first-child{font-size:14px;font-weight:600}.theme-selector{gap:6px;display:flex}.theme-btn{cursor:pointer;background:var(--bg-card);border:2px solid var(--border);color:var(--text-primary);transition:all var(--transition);border-radius:6px;padding:6px 12px;font-size:13px}.theme-btn:hover{border-color:var(--text-muted)}.theme-btn.active{border-color:var(--accent)}.toggle{cursor:pointer;width:44px;height:24px;display:inline-block;position:relative}.toggle input{opacity:0;width:0;height:0}.toggle-slider{background:var(--bg-hover);transition:var(--transition);border-radius:12px;position:absolute;inset:0}.toggle-slider:before{content:"";width:18px;height:18px;transition:var(--transition);background:#fff;border-radius:50%;position:absolute;bottom:3px;left:3px}.toggle input:checked+.toggle-slider{background:var(--accent)}.toggle input:checked+.toggle-slider:before{transform:translate(20px)}.select-input{background:var(--bg-card);border:1px solid var(--border);color:var(--text-primary);border-radius:6px;padding:6px 12px;font-size:13px}.search-input{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--border-radius);width:100%;color:var(--text-primary);transition:border var(--transition);outline:none;padding:10px 14px;font-size:14px}.search-input:focus{border-color:var(--accent)}.search-input::placeholder{color:var(--text-muted)}.stats-display{background:var(--bg-card);border-radius:var(--border-radius);width:100%;padding:16px}.stats-row{justify-content:space-between;padding:4px 0;font-size:13px;display:flex}.stats-row .stat-key{color:var(--text-secondary)}.stats-row .stat-val{font-weight:700}.dialog-overlay{z-index:1000;background:#0009;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.dialog{background:var(--bg-card);border-radius:var(--border-radius);box-shadow:0 8px 32px var(--shadow);text-align:center;width:90%;max-width:400px;padding:24px}.dialog h3{margin-bottom:16px}.promotion-options{justify-content:center;gap:8px;display:flex}.promo-btn{background:var(--bg-primary);border:2px solid var(--border);border-radius:var(--border-radius);color:var(--text-primary);cursor:pointer;transition:all var(--transition);padding:12px 20px;font-size:16px}.promo-btn:hover{border-color:var(--accent);background:var(--bg-hover)}.notification{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--border-radius);z-index:2000;box-shadow:0 4px 16px var(--shadow);padding:12px 24px;font-size:14px;font-weight:600;transition:transform .3s;position:fixed;bottom:24px;left:50%;transform:translate(-50%)translateY(100px)}.notification.show{transform:translate(-50%)translateY(0)}.notification.success{border-color:var(--accent)}.notification.error{border-color:var(--danger)}.notification.info{border-color:var(--accent-blue)}.theme-blue{--sq-light:#dee3e6;--sq-dark:#8ca2ad}.theme-green{--sq-light:#ebfcd5;--sq-dark:#78a85b}.theme-purple{--sq-light:#e8e0f0;--sq-dark:#9b7ec8}.theme-dark{--sq-light:#6b6b6b;--sq-dark:#4a4a4a}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media (width<=1100px){:root{--board-size:min(55vh, 420px);--sidebar-width:220px}}@media (width<=900px){:root{--board-size:min(75vw, 380px)}.game-layout{flex-direction:column;align-items:center;padding:8px;overflow-y:auto}.game-sidebar-left{flex-flow:wrap;justify-content:center;gap:6px;width:100%;padding:6px 8px}.game-sidebar-left .player-card{flex:1;min-width:140px}.game-sidebar-left .eval-bar-container,.game-sidebar-left .captured-pieces{width:100%}.game-center{padding:8px 0}.game-sidebar-right{border-left:none;border-top:1px solid var(--border);flex-direction:column;width:100%;max-height:200px}.game-sidebar-right .move-list{max-height:120px}.openings-layout{flex-direction:column}.openings-sidebar{border-right:none;border-bottom:1px solid var(--border);width:100%;max-height:40vh}.openings-detail{padding:12px}.board-frame-small{width:min(70vw,350px)}.analysis-body{flex-direction:column;overflow-y:auto}.analysis-board-area{flex-shrink:0}}@media (width<=600px){:root{--board-size:min(93vw, 340px)}.logo-piece{font-size:52px}.logo h1{font-size:28px}.tagline{font-size:13px}.menu-actions{width:100%;max-width:300px}.btn-large{padding:12px 16px;font-size:15px}.setup-container{gap:16px;padding:20px 16px}.setup-container h2{font-size:22px}.difficulty-selector{flex-wrap:wrap;gap:6px}.diff-btn{flex:unset;min-width:calc(50% - 4px);padding:10px 6px}.diff-btn .diff-desc{display:none}.color-selector{gap:6px}.mode-selector{flex-wrap:wrap;gap:6px}.mode-btn{flex:unset;min-width:calc(50% - 4px);padding:10px 6px}.mode-btn .mode-desc{display:none}.game-layout{padding:4px}.game-sidebar-left{gap:4px;padding:4px}.game-sidebar-left .player-card{min-width:120px;padding:6px 8px}.player-avatar{font-size:22px}.player-name{font-size:12px}.player-timer{font-size:14px}.captured-pieces{min-height:18px;font-size:14px}.eval-bar-container{padding:2px}.game-center{padding:4px 0}.game-status{margin-top:6px;padding:6px 14px;font-size:12px}.game-sidebar-right{max-height:180px}.move-list-header{padding:8px 12px;font-size:12px}.move-list{padding:4px;font-size:11px}.move-row{grid-template-columns:24px 1fr 1fr}.game-controls{gap:4px;padding:8px}.btn-small{min-height:36px;padding:8px 10px;font-size:12px}.opening-info,.game-actions{padding:8px 12px}.openings-header{padding:12px 16px}.openings-header h2{font-size:18px}.openings-sidebar{max-height:35vh}.openings-detail{padding:8px}.opening-detail-header h3{font-size:16px}.opening-moves-display{padding:10px;font-size:13px}.puzzle-board-area{gap:10px}.puzzle-prompt{font-size:15px}.settings-body{padding:16px}.theme-selector{flex-wrap:wrap}.theme-btn{padding:5px 8px;font-size:12px}.analysis-header{padding:12px 16px}.analysis-header h2{font-size:18px}.analysis-body{gap:8px;padding:8px}.analysis-stats{grid-template-columns:repeat(3,1fr);gap:4px}.stat-card{padding:8px}.stat-value{font-size:18px}.analysis-move-row{grid-template-columns:24px 1fr 1fr 70px;padding:3px 4px;font-size:11px}.dialog{max-width:300px;padding:16px}.promo-btn{padding:10px 14px;font-size:14px}.notification{padding:10px 16px;font-size:12px;bottom:16px}}@media (width<=380px){:root{--board-size:96vw}.logo h1{font-size:24px}.diff-btn,.mode-btn,.game-sidebar-left .player-card{min-width:100%}}@media (height<=500px) and (orientation:landscape){:root{--board-size:min(70vh, 320px)}.game-layout{flex-direction:row;overflow-x:auto}.game-sidebar-left{flex-direction:column;width:180px}.game-sidebar-right{width:200px;max-height:none}.game-center{padding:4px}}@media (pointer:coarse){.square .piece{min-width:44px;min-height:44px}.btn{min-height:44px}.btn-small{min-height:40px}.diff-btn,.color-btn,.mode-btn{min-height:48px}.opening-item{padding:10px 12px}.move-cell{padding:4px 8px}.cat-tab{padding:6px 12px}}@supports (padding:env(safe-area-inset-bottom)){body{padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}.screen{height:calc(100dvh - env(safe-area-inset-top) - env(safe-area-inset-bottom))}}@media (width<=600px){body{height:100dvh;overflow:hidden}.screen{-webkit-overflow-scrolling:touch;height:100dvh;overflow-y:auto}.game-layout{height:auto;min-height:100dvh}.game-status{margin-bottom:8px}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}.thinking{animation:1.2s ease-in-out infinite pulse}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-in{animation:.3s slideIn}@media (width<=600px){.game-layout.mobile-game-layout .eval-bar-container{display:none!important}.game-layout.mobile-game-layout .move-list{max-height:100px;position:relative;overflow:hidden}.game-layout.mobile-game-layout .move-list .move-row:nth-last-child(n+5){display:none}.game-layout.mobile-game-layout .move-list:after{content:"";background:linear-gradient(to bottom, var(--bg-card), transparent);pointer-events:none;height:32px;position:absolute;top:0;left:0;right:0}.game-layout.mobile-game-layout .game-status{margin-top:8px;padding:10px 20px;font-size:16px;font-weight:700}.game-layout.mobile-game-layout .game-center{padding-bottom:64px}.mobile-bottom-toolbar{display:none}.game-layout.mobile-game-layout .mobile-bottom-toolbar{background:var(--bg-secondary);border-top:1px solid var(--border);padding:6px 0;padding-bottom:calc(6px + env(safe-area-inset-bottom,0px));z-index:500;gap:0;display:flex;position:fixed;bottom:0;left:0;right:0}.mobile-bottom-toolbar .btn{min-height:48px;color:var(--text-secondary);background:0 0;border-radius:0;flex:1;justify-content:center;gap:4px;padding:10px 4px;font-size:12px}.mobile-bottom-toolbar .btn:active{background:var(--bg-hover)}.mobile-bottom-toolbar .btn .btn-icon{font-size:20px}}